Lack of power

The oil pump is inside the transmission

Transmission has to come out of the vehicle & be taken apart

You never do that for a pump alone

You just rebuilt the whole unit

Hello, There is a special Warranty on a part called a Cam Phaser. If the knock sounds like a Diesel engine and gradually gets quieter around 2000 RPM, then thats your problem. The Warranty goes to 7 Years and the Mileage is somewhere between 75K to 90K.

This is an expensive repair if not covered by Warranty. Even with a cheater tool and a Mechanic with the hands of a surgeon, you are looking at $600 to $1000 in parts alone. What it is exactly is there are 2 Camshafts that automatically adjust valve timing and the 2 parts that do this job are called Cam Phasers . The problem is when one or both of them do not adjust the same. You get spark knock on the over-advanced bank or you get retarded timing on the other (lack of power).

I hope my solution is very helpful to you in supplying the information you need to get this taken care of. I have friends with the same problem and if they did not get Warranty help I tell them to get an oil cleaning agent from Ford, put in new oil afterwards and try Lubeguard to free up the parts. Do not attempt this before getting Warranty work, only as a last resort.

Remove the oil pan, two bolts hold the oil pump on to the engine block, and one nut holds the oil pump strainer on.

The oil pump may have gone bad. Involves dropping the oil pan and replacing the oil pump, check the pan for any metal peices.

Check the fuel pump, water pump, drive belts, pulley tensor, timing belt, fuel filter, oil filter, oil, transmission filter, transmission oil, transmission, battery, spark plugs, power steering, power steering fluid, wiring, alternator and battery.

For the fluids or hydraulics mentioned above, if it has not been replaced, have it replaced.

Check EGR valve this controls idle speed it might have carbon build up hold the valve open. All so check fuel pressure.

Why are they stuck? Is it from setting and there rusted up? or are they sezed up from lack of oil? If its rust just take some trans oil and pour some into each spark plug hole and let it set over night, and then put a socket on the harmonic and turn back and forth until it frees up. If its lack of oil its my best guess you better look for another engine.

youll have to see if your coil is firing

The camshaft may be worn or the lifters .that explains the missing when you run it at operating temp.By the description of the oil. the reasomn the canmshaft wore out and the valve lifters is because the oil was not changed on a regular basis.

Possibly clearances "closing" at operating temparature? 20w50? Kinda heavy isn't it?Spun bearing - should make more noise than a "Tap"? I've heard several low and high mileage 2.9 engines "tap" but quits after warm up? That SEEMS to be somewhat common with the2.9 Sorry can't be more specific.